@freemo @admitsWrongIfProven
I paid for someone's groceries once(they were ahead of me). As the mom was thanking me after i paid. I bought her son a pack of gum as well.
Funny thing, she was initially really pissed at me for invading her space or something as I walked up to the card reader before she could get back to it. Like I was stealing from her or whatever. It wasn't until I pulled my card out and register did it's beeps that I could hear her head clicking into realization of the situation.
I don't do such things that often because of how potentially irate people can be when you try to be nice to them as aforementioned.
I had a coworker tell me once about how he generously paid for a lady's coffee in front of him and she got offended because she thought he was insulting her financial status. "Dude, she was a little old lady- I had no way to tell how much money she had! They all dress the same!" Lol